The free animal screensaver, Polar bear, contains 24 images of Polar bears. The polar bear (Ursus maritimus), a bear native to the Arctic, is the apex predator within its range. Its thick blubber and fur insulate it against the cold. Its fur is hollow and translucent but usually appears as white or cream coloured, thus providing the animal with effective camouflage. Its skin is actually black in color, however. The bear has a short tail and small ears that help reduce heat loss, as well as a relatively small head and long, tapered body to streamline it for swimming. The polar bear is a semi-aquatic marine mammal that depends mainly upon the pack ice and the marine food web for survival. It has adapted for life on a combination of land, sea, and ice. - wikiPolar Bear is a free screensaver created by RateMyScreensaver.com. Screensaver Picture Count: 24 Free Screensaver Type: Slideshow Credit: All images in this free animal screensaver fall under one of the following licenses: Creative Commons, Attribution ShareAlike 2.0, Attribution ShareAlike 2.5, public domain, GNU Free Documentation License.